Submitted to: Patent Application
Publication Type: Patent Application
Publication Acceptance Date: February 6, 2003
Publication Date: February 6, 2003
Citation: Leathers, T.D., Nunnally, M.S., Cote, G.L. 2003. Novel penicillium isolates for modifying alternan. Patent Cooperation Treaty (PCT) International Publication No. WO 03/010177. Technical Abstract: Four new Penicillium spp. isolates (NRRL 21966, NRRL 21967, NRRL 21968, and NRRL 21969) are capable of essentially quantitative conversion of native alternan to a polymeric modified form having a lower apparent molecular weight than native alternan. A fifth isolate (NRRL 30489) obtained from a survey of deposited organisms and classified as a Penicillium subgenus Biverticillium has the same ability. The modified alternan has rheological properties similar to ultrasonicated alternan and is produced without the expense of ultrasonication. It would have utility as a substitute for gum arabic for uses such as bulking agents and extenders in foods and cosmetics.